<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			.logo1{
				 width: 150px;
				 height: 150px;
				 position: fixed;/* */
				 z-index: 2;  /* 让当前div 处于最上层，默认z-index=0*/
				 top: 100px;
				 left: 50px;
				 
			}
		</style>
	</head>
	<body>
		 <!--
         	 position ：  fixed   固定元素 
         	 		    偏移量始终以窗体为准 
         -->
		 <div >
		 	 
		 </div>
		  <div>
		 	<img src="img/bg.jpg" />
		 </div>
		  <div>
		 	<img src="img/bg.jpg" />
		 </div>
		  <div>
		 	<img src="img/bg.jpg" />
		 </div>
		  <div>
		 	<img src="img/bg.jpg" />
		 </div>
		 <div class="logo1">
		 	<img src="img/organic_left_code_v1.jpg" />
		 </div>
	</body>
</html>
